Question

A 55-kg soccer player jumps vertically upwards and heads the 0.45-kg ball as it is descending...

A 55-kg soccer player jumps vertically upwards and heads the 0.45-kg ball as it is descending vertically with a speed of 24 m/s. (Note that the force of gravity may be ignored during the brief collision time.)

(a) If the player was moving upward with a speed of 4.0 m/s just before impact, what will be the speed of the ball immediately after the collision if the ball rebounds vertically upwards and the collision is elastic?
___ m/s

(b) If the ball is in contact with the player's head for 18 ms, what is the average acceleration of the ball?
___m/s2

Science   Physics   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

Conserve linear momentum

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
A 55-kg soccer player jumps vertically upwards and heads the 0.45-kg ball as it is descending...
A 55-kg soccer player jumps vertically upwards and heads the 0.45-kg ball as it is descending vertically with a speed of 27 m/s. (a) If the player was moving upward with a speed of 4.0 m/s just before impact, what will be the speed of the ball immediately after the collision if the ball rebounds vertically upwards and the collision is elastic? (b) If the ball is in contact with the player's head for 24 ms, what is the average...
A 71 kg soccer player jumps vertically upwards and heads the 0.45 kg ball as it...
A 71 kg soccer player jumps vertically upwards and heads the 0.45 kg ball as it is descending vertically with a speed of 27 m/s. If the player was moving upward with a speed of 4.0 m/s just before impact, what will be the speed of the ball immediately after the collision if the ball rebounds vertically upwards and the collision is elastic? m/s If the ball is in contact with the player's head for 20 ms, what is the...
A 75-kg soccer player jumps vertically upwards and heads the 0.45-kg ball as it is descending...
A 75-kg soccer player jumps vertically upwards and heads the 0.45-kg ball as it is descending vertically with a speed of 22 m/s. (Note that the force of gravity may be ignored during the brief collision time.) (a) If the player was moving upward with a speed of 4.0 m/s just before impact, what will be the speed of the ball immediately after the collision if the ball rebounds vertically upwards and the collision is elastic? (b) If the ball...
A soccer player kicks a soccer ball of mass 0.45 kg that is initially at rest....
A soccer player kicks a soccer ball of mass 0.45 kg that is initially at rest. The player's foot is in contact with the ball for 1.9
A soccer player kicks a soccer ball of mass 0.45 kg that is initially at rest....
A soccer player kicks a soccer ball of mass 0.45 kg that is initially at rest. The player's foot is in contact with the ball for 1.60 × 10-3 s, and the force of the kick is given by F(t) = [(6.39 × 105)t - (3.99 × 108)t2] N for 0≤t≤1.60×10-3s, where t is in seconds. Find the magnitudes of the following: (a) the impulse on the ball due to the kick, (b) the average force on the ball from...
A soccer player kicks a soccer ball of mass 0.45 kg that is initially at rest....
A soccer player kicks a soccer ball of mass 0.45 kg that is initially at rest. The player's foot is in contact with the ball for 1.50 × 10-3 s, and the force of the kick is given by F(t) = [(6.99 × 105)t - (4.66 × 108)t2] N for 0 less-than-or-equal-to t less-than-or-equal-to 1.50 times 10 Superscript negative 3 Baseline s, where t is in seconds. Find the magnitudes of the following: (a) the impulse on the ball due...
A player bounces a 0.46-kg soccer ball off her head, changing the velocity of the ball...
A player bounces a 0.46-kg soccer ball off her head, changing the velocity of the ball from v⃗ i = (8.4 m/s )x^ + ( -2.3 m/s )y^ to v⃗ f = (5.9 m/s )x^ + (3.0 m/s )y^. If the ball is in contact with the player's head for 6.7 ms, what is the direction of the impulse delivered to the ball? What is the magnitude of the impulse delivered to the ball?
A soccer player kicks a soccer ball of mass 0.50 kg that is initially at rest....
A soccer player kicks a soccer ball of mass 0.50 kg that is initially at rest. The player's foot is in contact with the ball for 1.8 10-3 s. The force of the kick is given by the following formula for 0 t 1.8 10-3 s, where t is in seconds. F(t) = [(7.2 106)t - (2.2 109)t2] N (a) Find the magnitude of the impulse imparted to the ball. Incorrect: Your answer is incorrect. Ns (b) Find the magnitude...
a soccer player is ready to deliver a kick to a ball. he will kick the...
a soccer player is ready to deliver a kick to a ball. he will kick the ball with a force of 1350 N directed at an angle of 48 degree above horizontal. his foot will be in contact with the ball for 5.9x10^-3 s. what is the impulse delivered by the player's foot? A volleyball player is ready to return the approaching ball with a speed of 11.0m/s. if she returns the ball in the same direction with a speed...
A 0.40 kg soccer ball is moving to the right with speed of 25m/s when it...
A 0.40 kg soccer ball is moving to the right with speed of 25m/s when it collides with a 0.60 kg basketball moving to the left with speed of 20 m/s. The basketball bounces off with speed of 12 m/s at an angle of 32.0° relative to its initial path as shown if the figure. At what angle, φ, relative to its original path does the soccer ball move after the collision? What is the speed of the soccer ball...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT